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Masimo Corp

MASIDelisted Jun 10, 2026
Industry
Electromedical & Electrotherapeutic Apparatus
SEC CIK
0000937556

Masimo Corp was delisted on Jun 10, 2026; its insiders filed their last Form 4 on Jun 12, 2026; 451 institutions reported holding it in 13F filings for Q1 2026, worth $9.69B in total; Soros Fund Management was the only superinvestor holding it.

Q2 2023 vs. Q1 2023

How the institutions holding Masimo Corp changed between Q1 2023 and Q2 2023.

All holders in Q2 2023All holders in Q1 2023

13F holders of MASI: Q1 2023 compared with Q2 2023
MeasureQ1 2023Q2 2023Change
Holders428415−13
Shares45.0M46.0M+958.6K (+2.1%)
Value$8.30B$7.56B−$738.3M (−8.9%)

New holders (45)

Institutions that held Masimo Corp at the end of Q2 2023 but not at the end of Q1 2023.

Institutions new to MASI in Q2 2023
InstitutionSharesValue% of portfolio
Westfield Capital Management Co LP953,799$156.9M1.00%
Jackson Square Partners, LLC126,540$20.8M0.61%
Putnam Investments LLC61,600$10.1M0.01%
Qube Research & Technologies Ltd39,175$6.45M0.03%
13D Management LLC27,600$4.54M2.48%
Capital Fund Management S.A.24,286$4.00M0.06%
Mirabella Financial Services LLP24,106$3.97M0.46%
Squarepoint Ops LLC18,451$3.04M0.02%
Forsta Ap-Fonden10,300$1.69M0.02%
Pura Vida Investments, LLC10,000$1.65M0.68%
Oppenheimer & Co Inc5,415$891.0K0.02%
PEAK6 Investments LLC4,925$810.4K0.07%
Juncture Wealth Strategies, LLC4,621$760.4K0.36%
FORA Capital, LLC3,923$645.5K0.09%
Harbor Capital Advisors, Inc.3,466$570.3K0.11%
Endurant Capital Management LP2,850$469.0K0.60%
Wexford Capital LP2,820$464.0K0.09%
Caxton Associates LP2,568$422.6K0.06%
Advisors Asset Management, Inc.2,179$358.6K0.01%
Algert Global LLC2,168$356.7K0.02%
Cresset Asset Management, LLC2,109$347.0K0.00%
Two Sigma Securities, LLC2,103$346.0K0.03%
Dynamic Technology Lab Private Ltd2,065$340.0K0.04%
Fox Run Management, L.L.C.2,066$340.0K0.10%
Echo Street Capital Management LLC1,949$320.7K0.00%
Mission Wealth Management, LP1,600$263.3K0.01%
Boulder Hill Capital Management LP1,500$246.8K0.48%
XTX Topco Ltd1,372$225.8K0.04%
Capstone Investment Advisors, LLC1,359$223.6K0.01%
Engineers Gate Manager LP1,327$218.4K0.01%
Group One Trading, L.P.486$80.0K0.00%
UniSuper Management Pty Ltd400$65.8K0.00%
Quantbot Technologies LP317$52.2K0.00%
Achmea Investment Management B.V.242$39.0K0.00%
National Bank of Canada175$28.8K0.00%
Headlands Technologies LLC84$13.8K0.00%
Private Trust Co NA74$12.2K0.00%
Safeguard Financial, LLC50$8.00K0.00%
West Tower Group, LLC25$4.11K0.00%
Bollard Group LLC5$1.00K0.00%
Versant Capital Management, Inc6$9870.00%
Fairfield, Bush & Co.3$4940.00%
Fiduciary Alliance LLC3$4940.00%
Sofos Investments, Inc.165$4510.00%
VisionPoint Advisory Group, LLC1$1650.00%

Sold out (58)

Institutions that held Masimo Corp at the end of Q1 2023 and filed for Q2 2023 without it.

Institutions that sold out of MASI in Q2 2023
InstitutionShares, Q1 2023Value, Q1 2023
1832 Asset Management L.P.50,000$9.23M
HRT Financial LP48,289$8.91M
SG Capital Management LLC40,102$7.40M
Castleark Management LLC35,240$6.50M
Cloverfields Capital Group, LP18,858$3.48M
Banque Pictet & Cie SA15,252$2.81M
Inceptionr LLC8,864$1.64M
Gsa Capital Partners LLP7,907$1.46M
Unigestion Holding SA6,966$1.24M
Van Eck Associates Corp6,059$1.12M
Virginia Retirement Systems Et Al5,928$1.09M
Ergoteles LLC5,749$1.06M
Knowledge Leaders Capital, LLC5,632$1.04M
Quadrature Capital Ltd4,897$904.4K
Wellington Management Group LLP4,345$801.8K
Westpac Banking Corp3,952$729.3K
Assenagon Asset Management S.A.3,924$724.1K
Schonfeld Strategic Advisors LLC3,772$696.1K
Lombard Odier Asset Management (Europe) Ltd3,100$572.1K
Edgestream Partners, L.P.2,782$513.4K
Duality Advisers, LP2,701$498.4K
National Asset Management, Inc.2,594$478.7K
Candriam Luxembourg S.C.A.2,813$477.8K
Intech Investment Management LLC2,459$453.8K
Holocene Advisors, LP2,150$396.8K
Oak Thistle LLC1,635$301.7K
Quantamental Technologies LLC1,612$297.5K
Cetera Advisors LLC1,591$293.6K
Jefferies Financial Group Inc.1,589$293.2K
Jump Financial, LLC1,547$285.5K
LRT Capital Management, LLC1,452$268.0K
Raymond James Financial Services Advisors, Inc.1,432$264.3K
PVG Asset Management Corp1,425$263.0K
Hamilton Wealth, LLC1,234$227.7K
Synergy Financial Group, LTD1,196$220.7K
Mutual Advisors, LLC1,177$217.2K
Matisse Capital1,166$215.2K
B. Metzler seel. Sohn & Co. AG1,121$206.9K
HBK Sorce Advisory LLC1,113$205.4K
Intrust Bank NA1,102$203.4K
Alberta Investment Management Corp1,100$203.0K
Advisory Services Network, LLC765$141.2K
Dark Forest Capital Management LP510$94.1K
Castleview Partners, LLC376$69.4K
Belpointe Asset Management LLC339$62.6K
Caisse de Depot Et Placement du Quebec200$36.9K
Acadian Asset Management LLC146$26.0K
Machina Capital S.A.S.101$18.6K
Sageworth Trust Co of South Dakota90$16.6K
TCI Wealth Advisors, Inc.47$8.67K
New Hampshire Trust41$7.57K
Bokf, NA32$5.91K
North Star Investment Management Corp.30$5.54K
Ameritas Advisory Services, LLC27$5.21K
BDO Wealth Advisors, LLC25$4.61K
Values First Advisors, Inc.21$3.88K
Robbins Farley LLC20$3.69K
Schubert & Co16$2.95K